[Octopath Traveler 0]A complete strategy guide that will dramatically make the middle game more comfortable! How to strengthen all Wish Veil facilities, details on joining Hydne and Olberik, acquisition of all 8 types of sacred treasures, location of 8 types of Seal Crest keys, thorough explanation of damage 99999 breakthrough

In the middle of Octopath Traveler 0 (hereinafter referred to as Octopath 0), the difficulty of the story increases rapidly, and the efficiency of battle and exploration becomes the key. This guide will focus on the restoration of your hometown, Wishvale, and thoroughly explain how to strengthen all the facilities, how to join the powerful companions Hydne and Olberic, the route to obtain the eight most powerful weapons, the eight sacred treasures, all the locations of the eight Seal Keys, and the details of how to break the damage limit of 99,999. If you follow these rules, you will be able to quickly eliminate the struggles in the middle and have a smooth transition to the second half. Reconstruction work is based on collecting shining foundations from symbol enemies, and by repeating material construction, the town level will rise and new facilities will be unlocked. The recommended level is around 20 to 40 depending on the facility, but it is also realistic to conquer lower levels if you train in parallel.

1. Fundamentals of mid-game strategy: A thorough guide to Wishvale reconstruction and facility reinforcement priorities

Restoring Wishveil is the top priority in the mid-game, and raising the town level will dramatically improve combat efficiency, exploration speed, and training ability. Build a workshop immediately after clearing the prologue and collect wood, stone, cloth, and clay. These materials can be obtained from glowing points along the way, begging, or stealing, and it is efficient to use NPCs in Valore and Ember Glow. Proceed through the sub-stories of the Lights of Restoration series in parallel and invite residents to expand the facility. The training center is unlocked at town level 4, the arena is unlocked at town level 5, and the friendship system is unlocked at town level 6, setting the foundation for the mid-game.

The priority order is as follows. First, build fields and ranches, produce grapes and milk, and mass-produce grape ice cream at the store to stabilize your financial situation. Next, upgrade your workshop and accelerate material production. Shining foundations are dropped from symbol enemies (e.g. ferocious snakes) and are essential for strengthening facilities. As you progress with reconstruction, regular income will be generated and leaves will be automatically accumulated. It's easy to make mistakes, but don't forget about resident placement and increase the number of farm animals through animal talk. Cows are available south of Valore, and sheep are available east of Embergrow. This will completely eliminate the lack of material in the midfield.

town level	Lifted facilities/effects	Examples of required materials
1	Workshop (begins material production)	10 wood, 5 stone
2	Field/Ranch (automatic generation of ingredients)	15 cloth materials, 10 clay materials
3	Base (party can be formed)	Shining foundation 1
4	Training center (reserve EXP/JP distribution)	Shining foundation 2
5	Arena (Boss rematch EXP agriculture)	Shining foundation 3
6	Focus (purchase luxury equipment)	Shining foundation 4

If you don't rebuild, you will easily get stuck with the boss in the second half, so make it a habit to return to Wish Veil after every chapter of the story. Increasing your friendship level will strengthen the resident abilities, for example, you can take advantage of Hydne, which has +50 speed.

2. Priority facility reinforcement: Form a party and release blue treasure chests at bases and priests

Strengthening your base allows you to organize your party from the main menu, which is the first step to making full use of 8 people. After construction, you can upgrade it with 1 Shining Foundation and add the ability to create dishes. The priest (torch stand) is the key to unlocking the blue treasure chest, and you can obtain high-performance equipment (such as the platinum sword) by upgrading it to 3 stages (total of 3 shining foundations). Blue treasure chests are located deep in dungeons in various locations, and a priest level 3 is required to open them. Example: Sting dagger from the locked box in the Serpent's Den.

1. Clear Light of Restoration Parts 1 to 5 and invite the priest NPC.
2. Dedicate blue stones to the cauldron to level up. Bluestone 1 is Prologue, Bluestone 2 is East of Ember Glow, and Bluestone 3 is South of Valore.
3. Collect blue boxes while exploring various locations (more than 50 in total, accounting for half of mid-game equipment).

This will equip you with physical/magical resistance equipment and improve your durability against bosses. If you neglect to strengthen the priests, there will be a disparity in equipment for the blue box, and you will inevitably have a hard time.

3. Training center and achievement board: Boost efficiency with backup training and fast travel

The training center distributes EXP/JP to non-participants in battle, and special moves will be unlocked at grade 2. It is also possible to develop special skills through dispatch, which is a revolution in the development of mid-level players. The achievement table unlocks fast travel with youth stones, and the second reinforcement gives priority to animal talk (obtain items by placing city animals). Youth stone obtained: Granport Tool Shop Connoisseur, Silver Fountain (Wealth Chapter 3).

facility	Strengthening effect	Utilization Tips
training center	EXP/JP reserve distribution, special release	Dispatch Olberik to overcome the limit
achievement table	move anywhere	Recommended for youth stone begging resemara

This will drastically change the way you go through dungeons, and you can reach level 40 in half the time.

4. Arena and focus release: infinite experience farm and mass production of high-end equipment

The arena is a boss capture rematch with 2000 EXP or more per battle, and it is a hidden item when you ask NPCs. The focus is on purchasing high rare equipment in bulk and increasing the grade to increase the lineup. Multiple items can be obtained at grade 3, and are essential for updating equipment.

1. Clear capture request.
2. We will have a rematch with a party that focuses on the weak point: spear/axe.
3. Increase level 10 in 1 hour.

Purchase the Forbidden Series with Focus and complement it with Begging. This will overwhelm the mid-stage boss.

5. Complete procedure for joining super strong debuffer thief Hydne

Hydne is a thief-type debuffer, and also has excellent stealing and last acts. There are 3 special stages to join.

1. From the sunshade sand road female conversation? ? ? (Hydne) Battle (Shield 20, Weakness Spear Ax Bow Ice Light, HP 40,000). Stealing: Ripper secret.
2. This is a rematch from the Flame Grace Yukimichi Hydne conversation. Steal: Ice Spirit Sekidai, Drop: Offense Down Secret.
3. Sunshade merchant from “The Value of Life'' to “Vampire Lord and Hydne'' (ship required, Wishveil Morimichi).

I will join after clearing the ship after getting it. Share speed +50 with select, and everyone's actions will be accelerated. He deals multi-stage damage with triple throw and is an essential character.

6. Firepower revolution! The secret to joining Olberic and breaking the damage limit

Olberic is a swordsman, and his most important support ability is breaking the damage limit (9999 to 99999). It is unlocked by learning all battle abilities, and can be added to other characters at the training center (ideal for high firepower such as Alexia). Join: Master of Everything After the final chapter, clear the NPC event “Encounter with Olberic” in the upper right corner of Shepard Rock.

Utilization: Keep Olberic in reserve and share support ability. Gouken Hissatsu is guaranteed to be 99999. Wipe out the lack of firepower.

7. The eight most powerful weapons and sacred treasures: A map to capture the Heroic Spirit Island and obtain all eight Seal Keys.

The Isle of Heroic Spirits (outside sea, access after the ship) is a treasure trove of eight kinds of sacred treasures. In the sub-quest “8 Sacred Treasures” (Lv60), defeat the illusion of a great martial artist (multiple shields, weak points: spear, ax, bow style) and use the seal key on each door to obtain it. Weapons: sword (high attack), axe, bow, spear, staff, book, secret technique, special effects (for example, sword increases critical rate).

kinds	Location details
search	The deepest shining point in the serpent's lair
sword	When joining Valore Tavern Viator
ax	Victor Hollow Merchant Connoisseur
book	Boiling War Treasure Chest
mystery	NPC begging near Sufratalja Inn
spear	East Kojima in the outside world (after the ship)
cane	Grandport street stall begging
bow	East Shiflo Riverbank Treasure Chest

After collecting the keys, enter Kojima and defeat the boss by making full use of your supporters. Unrivaled attributes are possible with all weapons equipped.

8. Complete mid-game strategy summary: Now you can be unrivaled in the second half

If you do the above, you will be able to clear the middle stages with a town level 6, over 10 companions, sacred weapon class equipment, and 99999 firepower. Next, we will move on to sealing the final ring and aim to conquer all the masters. The end content will be easy as the reconstruction continues. Wishvale becomes a metropolis and becomes the player's castle. Experience a 100% improvement in efficiency with no need to raise your level. The second half of the guide will be added with continuous updates.